随着2018年世界杯足球赛的目光转向俄罗斯，那些有幸在体育场观看比赛的球迷们将会享受到场馆最先进的音频扩音系统。2018年世界杯的64场比赛将在这个幅员辽阔的国家，从波罗的海沿岸一直到东部乌拉尔山脉，相隔1800英里的十几个体育场举行。

其中之一是叶卡捷琳堡体育场，最初开放于1957年，随后在2011年完成了重大翻修。为了符合国际足联的标准，该场馆将为球迷们搭建一些新颖的临时位置，在两个球门后面的外围增加额外的座位，使其容纳多达35000人。

为准备安排在那里举行的四场世界杯比赛，也为俄罗斯超级联赛球队乌拉尔·叶卡捷琳堡的主场所用，安装了巨大的Outline (欧浪)音响系统，围绕专门为这一应用设计的新品"Stadia"体育场馆系列。

整个体育场总共配置了223只Outline (欧浪)音箱，为场馆的每个座位提供无缝覆盖以及卓越的清晰度。Stadia系列包括三种不同的型号(100-10、100-20和100-30，分别提供了不同的垂直扩散特性)，所有这三种型号的设计突出了在整个体育场总共使用121只Stadia音箱。

搭配使用48只Outline (欧浪) ST SUB超低音音箱，这是Stadia系列的专用低音搭配，另外54只Vegas 24超紧凑型音箱用于覆盖贵宾区和来宾区。由超过300个单独的Outline (欧浪)放大通道来驱动这个巨大的系统，合计总功率超过100万瓦。

CROC有限公司作为体育场基础设施开发的总承包商，创建并实施一整套设施，包括低电流设计、入场券和安全系统、电信、广播、多媒体、扩音系统和工程系统监控。

受到CROC公司客户部经理Andrey Korogodin的邀请，Sofit Light公司( Outline (欧浪)俄罗斯经销商)的技术人员与总承包商密切合作，共同设计扩音系统。

Sofit Light公司的高级工程师Alexander Klinushkin评论说:"我们收到了对所做工作的非常积极的反馈。当第一次运行系统时，仅使用出厂预置，已经能有清晰的并且具有音乐性的结果。我们做了一些微调(这是在系统设计过程中预见到的)，系统要求很大的净空，当考虑到观众席时有必要注意这一点。"

喀山体育场也是赛事的重要场地，将使用2013年安装的Outline (欧浪)系统。Outline (欧浪)Spectra II音箱和Tripla II音箱的组合(分别使用24只和48只)由31台Outline (欧浪)T9功放驱动，全部连接到5台Outline (欧浪)Genius M412矩阵处理器。

As the eyes of the soccer world turn towards Russia for the 2018 World Cup, those fans lucky enough to watch games at one stadium in particular will enjoy state of the art audio reinforcement for such a venue.The 64 matches that comprise the 2018 World Cup are to be hosted across a dozen stadia up to 1,800 miles apart in this vast country, from the Baltic Coast all the way to the Ural mountains in the east.

One of these is the Ekaterinburg Stadium, originally opened in 1957 then subject to a major redevelopment completed in 2011. To meet FIFA is specifications it will feature some innovative temporary space for fans, with extra covered seating on the outside of the stadium perimeter behind both goals, taking its capacity up to just over 35,000.

In preparation for the four World Cup matches scheduled to be played there and also for the use of Russian Premier League side Ural Ekaterinburg, whose home ground it is, a huge Outline sound system has been installed based around their new "Stadia" series of products designed specifically for this application.

A total of 223 Outline loudspeaker enclosures have been deployed throughout the stadium to provide seamless coverage and superlative intelligibility to every seat in the house. The Stadia series includes three different models (the 100-10, 100-20 and 100-30, offering a choice of vertical dispersion characteristics) and all three models feature in a design that uses a total of 121 Stadia modules throughout the stadium.

They are joined by 48 Outline ST SUB low-frequency modules, the dedicated LF companion in the Stadia range, while a further 54 Vegas 24 ultra-compact enclosures are used to cover the VIP and guest zones. More than 300 individual channels of Outline amplification power the huge system with a combined total power of over one million watts.

CROC Ltd. were appointed as the general contractor for the development of the stadium infrastructure, subsequently creating and implementing a complete suite of facilities including low-current designs, ticket entry and physical security systems, telecommunications, broadcast, multimedia, sound reinforcement and engineering systems monitoring.

At the invitation of Andrey Korogodin, Director Of Corporate Customers Department of CROC, the specialists of the Sofit Light Company (Outline is distributor in the Russian Federation) worked closely with the lead contractor in the design of the sound reinforcement system.

Alexander Klinushkin, Sofit Light is Senior Engineer, comments: "We received a very positive feedback on the job done. When the system was turned on for the first time, using only the factory presets, the result was already intelligible and musical. We made some fine tuning (that was in any case foreseen during the system design), the system works with a lot of headroom and it is necessary to keep it in mind when working with the audience."

Also a key venue in the tournament, the Kazan Arena will be using their Outline system which was installed in 2013. A combination of Outline Spectra II and Tripla II (using 24 and 48 units respectively) are powered by 31 Outline T Nine amplifiers, all connected to five Outline Genius M412 matrices.